Wood for garden bed edge. (Restalrig EH7)

I'm on the hunt for a little over 10 meters of wood to build the edge of a couple garden beds. Nothing too fancy, just something the slugs will have to crawl over in order to get at my lettuce. If anyone has a couple pallets laying around, or knows where some are within walking distance of EH7 6PE (Top of Restalrig) That'd probably do. Thank you.